The Fall of the Byzantine Empire: A Chronicle
Geōrgios Phrantzēs
The Crusades
David Nicolle
The Secret of Light
Walter Russell
Encyclopedia of the Underground Railroad
J. Blaine Hudson
Secrets of Nature
William R. Newman & Anthony Grafton
The Riemann Problem and Interaction of Waves in Gas Dynamics
Tong Zhang & Ling Hsiao & Ling Xiao